Where is the starter relay located in an Audi A6?

[StWilliam]

The starter relay is integrated in the vehicle's fuse box. Function of the starter relay: When the ignition key is turned, it supplies power to the starter relay. The relay then engages, connecting power to the starter motor. The starter gear meshes with the flywheel, causing the starter motor to rotate and turn the flywheel, thereby starting the engine. Once the engine starts, releasing the key cuts power to the starter motor. The starter gear disengages from the flywheel under the action of the return spring, completing the starting process. Therefore, under normal engine operation, the starter motor does not rotate. Main power wiring of the starter relay: The main power is directly drawn from the battery. The auxiliary circuit includes the combination switch (ignition key), starter relay, and then connects to the starter motor.